Apple released updated to patch the zero-day bugs on Thursday (Picture: Reuters)

Apple users are being urged to update their products immediately to protect against a powerful new spyware that infiltrated devices without any clicks.

The tech company released updates to patch two zero-day exploit chains on Thursday.

It comes after an employee of the Washington DC-based civil society organization Citizen Lab found the zero-click vulnerability delivering Pegasus mercenary spyware, according to Citizen Lab researcher John Scott-Railton.

Apple has released updates to patch two zero-day exploit chains.